The performance of a dual helical ribbon impeller in a gassed stirred tank reactor filled with a shear-thinning polymer has been investigated experimentally in this study. Sodium carboxymethyl cellulose with different concentrations were applied to change the viscosity and rheological behaviour of working fluid. Titration reaction between HCl and NaOH then took place inside the reactor under controlled pH, evaluating the influence of a dual helical ribbon impeller on the performance of a two-phase agitated reactor. The impact of impeller rotational speed, gas flow rate, viscosity, and clearance to the bottom on power uptake and mixing time are explored. The results thus reveal that the presence of bubbles reduces both required power uptake and mixing time to reach an endpoint reaction. Contrary to expectations, this study indicates that increasing the impeller's speed beyond a certain level, not only fails to further reduction in mixing time, whilst the power uptake increases exponentially.

Furthermore, for the first time, this study suggest that power number is inversely proportional to the square root of Reynolds number when systems are equipped with a dual helical ribbon impeller. The response surface method and quadratic numerical models are applied to suggest models in order to calculate the mixing time and power consumption.

在这项研究中，已经对用双螺旋螺旋带式叶轮在装有剪切稀化聚合物的充气搅拌釜反应器中的性能进行了研究。使用不同浓度的羧甲基纤维素钠改变工作流体的粘度和流变行为。然后，在受控的pH值下，在反应器内部进行HCl和NaOH之间的滴定反应，从而评估了双螺旋带式叶轮对两相搅拌反应器性能的影响。研究了叶轮转速，气体流速，粘度和底部间隙对功率吸收和混合时间的影响。因此结果表明，气泡的存在减少了达到终点反应所需的动力吸收和混合时间。与期望相反，

此外，这项研究首次提出，当系统装有双螺旋带状叶轮时，功率数与雷诺数的平方根成反比。应用响应面法和二次数值模型来建议模型，以计算混合时间和功耗。